Numerical simulation of the performance of the ASDEX pressure gauge

doi:10.1016/j.vacuum.2021.110237

	Numerical simulation of the performance of the ASDEX pressure gauge
	Wang, Guodong 1; Yi, Minghui 1; Chen, Changqi 1; Zhou, Zhiwei 2; Wang, Jinwei 1; Lin, Yunlong 1
刊名	VACUUM
	2021-07-01
卷号	189
关键词	ASDEX pressure gauge Numerical simulation Sensitivity Magnetic field
ISSN号	0042-207X
DOI	10.1016/j.vacuum.2021.110237
通讯作者	Wang, Guodong(gdwang@hfut.edu.cn)
英文摘要	The normalised output I-i/(I-e-I-i) and sensitivity of the ASDEX pressure gauge are numerically simulated in this paper. The effects of the electrode spacing, width of grid slit and electrode voltage on the sensitivity of the ASDEX gauge are analyzed respectively, and the orthogonal analysis method is applied to optimize the structural and electrical parameters of the ASDEX pressure gauge. According to the simulation result, the sensitivity of the optimized gauge is increased to 0.01138 Pa-1 without magnetic field. The motion trajectories of emitted electrons and sensitivity are simulated when the magnetic induction intensity is in the range of 0 similar to 1 T. The studies have demonstrated that the magnetic field inhibited the motion of emission electrons in the direction perpendicular to the base plate, increasing the probability of the electrons reaching the effective ionization volume and extending the electron path length due to the helical trajectories. When the magnetic induction intensity increased from 0 to 1 T, the sensitivity of the gauge increases from 0.01138 Pa-1 to 0.149 Pa-1.
资助项目	National Natural Science Foundation of China[61574053] ; Special Funds for Fundamental Research Business Expenses of Central Universities[2016HGQC0031]
WOS关键词	IONIZATION GAUGES ; 3D-SIMULATION
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000663210800004
资助机构	National Natural Science Foundation of China ; Special Funds for Fundamental Research Business Expenses of Central Universities
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123823]
专题	中国科学院合肥物质科学研究院
通讯作者	Wang, Guodong
作者单位	1.Hefei Univ Technol, Sch Mech Engn, Hefei 230009, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Wang, Guodong,Yi, Minghui,Chen, Changqi,et al. Numerical simulation of the performance of the ASDEX pressure gauge[J]. VACUUM,2021,189.
APA	Wang, Guodong,Yi, Minghui,Chen, Changqi,Zhou, Zhiwei,Wang, Jinwei,&Lin, Yunlong.(2021).Numerical simulation of the performance of the ASDEX pressure gauge.VACUUM,189.
MLA	Wang, Guodong,et al."Numerical simulation of the performance of the ASDEX pressure gauge".VACUUM 189(2021).